Async open file support in QNetworkAccessManager

This change adds support for BackgroundRequestAttribute to local file request. It is useful
when opening files located in network drives where the file open operation could take several
seconds to complete. When this attribute is activated the QNetworkAccessManager::get call
returns the reply immediately and the user has to wait until QNetworkReply::finished signal
is emitted or QNetworkReply::isFinished function returns true.

Task-number: QTBUG-45925
Change-Id: Ie2019dd94fe04253d1ef6874811d7e749a5aad93
Reviewed-by: Edward Welbourne <edward.welbourne@theqtcompany.com>
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@theqtcompany.com>

1 files changed, 8 insertions, 4 deletions

diff --git a/src/network/access/qnetworkreplyfileimpl_p.h b/src/network/access/qnetworkreplyfileimpl_p.h
index bac00881a8..1f1be40bc8 100644
--- a/src/network/access/qnetworkreplyfileimpl_p.h
+++ b/src/network/access/qnetworkreplyfileimpl_p.h
@@ -59,13 +59,12 @@
 
 QT_BEGIN_NAMESPACE
 
-
 class QNetworkReplyFileImplPrivate;
 class QNetworkReplyFileImpl: public QNetworkReply
 {
     Q_OBJECT
 public:
-    QNetworkReplyFileImpl(QObject *parent, const QNetworkRequest &req, const QNetworkAccessManager::Operation op);
+    QNetworkReplyFileImpl(QNetworkAccessManager *manager, const QNetworkRequest &req, const QNetworkAccessManager::Operation op);
     ~QNetworkReplyFileImpl();
     virtual void abort() Q_DECL_OVERRIDE;
 
@@ -77,6 +76,9 @@ public:
 
     virtual qint64 readData(char *data, qint64 maxlen) Q_DECL_OVERRIDE;
 
+private Q_SLOTS:
+    void fileOpenFinished(bool isOpen);
+
     Q_DECLARE_PRIVATE(QNetworkReplyFileImpl)
 };
 
@@ -85,12 +87,14 @@ class QNetworkReplyFileImplPrivate: public QNetworkReplyPrivate
 public:
     QNetworkReplyFileImplPrivate();
 
-    QFile realFile;
-    qint64 realFileSize;
+    QNetworkAccessManagerPrivate *managerPrivate;
+    QPointer<QFile> realFile;
 
     Q_DECLARE_PUBLIC(QNetworkReplyFileImpl)
 };
 
 QT_END_NAMESPACE
 
+Q_DECLARE_METATYPE(QNetworkRequest::KnownHeaders)
+
 #endif // QNETWORKREPLYFILEIMPL_H